CODEWITHSUNDEEP
phpsessionunset
Amy
Amy

Reputation: 55

Issue deleting session variables

I am having a problem deleting/unsetting session variables.

For example if I have 3 items in a shopping cart 1,2,3 and I deleted all those items. They should be deleted from the session but instead they're hidden.

Unset both variables This is where I unset the 2 session variables cart_array and minicart

 <?php
      if (isset($_POST['index_to_remove']) && (!empty($_SESSION["cart_array"]["minicart"]))) {
        // Access the array and run code to remove that array index
        $key_to_remove = $_POST['index_to_remove'];
        if (count($_SESSION["cart_array"]["minicart"]) <= 1) {
            unset($_SESSION["cart_array"]["minicart"]);
        } else {
            unset($_SESSION["cart_array"]["minicart"]["$key_to_remove"]);
            sort($_SESSION["cart_array"]["minicart"]);
        }
    }
?>

HTML

   echo '<form action="cart.php" method="post">
            <input name="deleteBtn' . $item_id . '" 
            type="submit" value="Delete" />
            <input name="index_to_remove" 
            type="hidden" value="' . $i . '" />
            </form>';

also in this header.php page I echo out the both session varibles cart_array and minicart

MY QUESTION IS/ ISSUES IS

if you look in unset variables it is meant to unset both session variables cary_array and minicart based on the itemid which is assigned to those sessions. Now if I click on the delete button this deletes the item from cart BUT *WHY ISN'T IT DELETING the session variable cary_array and minicart from the session?

I know it has been deleted because the code below shows that instead of the session variable getting deleted(unset) is not

if(isset($_SESSION ['cart_array']) && !empty($_SESSION['cart_array'])) {
   echo ("I am still here");
    }

Upvotes: 1

Views: 337

Answers (2)

Dan H
Dan H

Reputation: 3623

When you do:

unset($_SESSION['cart_array']['minicart']);

you are just unsetting "minicart", not "cart_array".

If you want to unset both "cart_array" and "minicart", you should just do:

unset($_SESSION['cart_array']);

or

$_SESSION['cart_array'] = array();

To test if the arrays are empty or not, just:

if ($_SESSION['cart_array']):
else:
endif;

Upvotes: 2

Chibueze Opata
Chibueze Opata

Reputation: 10054

Try this:

$_SESSION['cart_array'] = Array();//This should empty the cart.

Then test only for empty. The reason is most likely due to the way PHP's GC works. Read this answer for better explanation.

Upvotes: 2

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